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The flaw in factory resets

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A new service allows users to sell old phones and tablets but, as LIRON SEGEV reports, deleting information before selling a device does not wipe your slate clean

 

 

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Every phone and tablet has an option under Settings that allows you to Reset Phone to Factory Defaults. When activating this option the phone warns you that it will delete all your information, pics, music, e-mail, apps and everything else that you have loaded on the device. Essentially the phone is reset to the point where it came out of the factory and ready to be setup for the first time.

But is this good enough ? Is your information really deleted?

The shocking answer is: NO.

What happens when you delete ?

When we create a file, such as when we snap a new pic or create a new document, the operating system creates the file by storing it in bits and pieces in blocks on the device’s storage – be it internal phone storage or SD Card. It look similar to this:

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In order to find which blocks make up the file, the operating system creates an index which identifies the bits that make up the complete file.

When you delete a file, the operating system removes not the content inside the blocks, but removes the reference to those blocks from the Index. However all the bits in the blocks still remain on the hard drive and are marked as “free” so that new files can overwrite those bits. It’s the equivalent of removing the chapter name from the Index of the book, but still leaving the contents of the chapter inside the book – if you page through, you will find that chapter even without the index.

And this is where the problem arrises.

There are applications that allow techies to skip over the index and view the bits inside those blocks so they can recover any file whose blocks haven’t been overwritten by new files.

Does Factory Reset leaves content behind?

Yes.

This is confirmed by the team at security firm Avast, who purchased 20 phones on eBay and ran their software though them that have been reset to Factory Defaults. They discovered over 40,000 photos (yes, including those sexting pics), 750 e-mails, 250 contacts with names and addresses and various personal files.

Stefan Tanase, Senior Security Researcher, Global Research & Analysis Team, Eastern Europe, Middle East and Africa, Kaspersky Lab confirms this too:

“A staggering amount of personal data is usually left on devices after a factory reset is performed. Most often these devices end up being sold on eBay(-like) websites, and might end up in the hands of someone with bad intentions, who can recover the data. Users don’t realise that they leave behind e-mails or SMS messages, contact information or even personal pictures and videos shot with the phone camera. Essentially, all data stored on the device is recoverable to some extent”

How do you do you ensure that your data is actually deleted ?

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Simply doing a factory reset clearly is not the answer. If you want to ensure that none of your sensitive pics or information land up all over the Internet, you should Encrypt your device before doing Factory Reset

This sounds very “James-Bondy” but it s a simple step that you need to do with the tool  included with your phone. When you run the encryption tool, it protects your files from prying eyes which goes a long way to stop anyone with $50 software from getting a hold of your  family pics.

Each phone manufacturer has their own way of dealing with encryption:

Obviously before engaging in this, make sure you read and understand what is involved and back up your phone (do not lose the PIN either.)

If your device doesn’t have encryption built into the settings, then you can download several applications from the App Stores that allow you to do that.

The obvious solution would be for the mobile phone manufacturers to have encryption built into their Factory Reset process, however as Stefan Tanase  points out that the mobile phone manufacturers chose not to do this because of:

1. Lack of security awareness – both users and manufacturers generally don’t realise the importance of securely erasing data.

2. Speed – erasing a storage device securely takes more time, and the reality is that most users would rather have their device quickly perform the factory reset.

The more we trust our mobile phones with out lives, the more we should be weary of just how vulnerable these devices are. We need to be more aware of the digital fingerprints we are leaving behind.

* Image courtesy of shutterstock.com

* Follow Gadget on Twitter on @GadgetZA

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AppDate: Prepare for space

In this week’s AppDate, SEAN BACHER highlights Space Nation Navigator, Hitman Sniper, Snake Mask, Memrise, WhatsApp Web, and Carrot Weather.

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Space Nation Navigator

Space Nation Navigator is a bit of a strange app. It is part game, part exercise and part educational. On the game side, users have to navigate the Mars Rover, put the International Space Station back into orbit or move their Martians to safety before a sand storm hits Mars. When it comes to exercise, Space Nation Navigator provides users with a range of exercises and Yoga videos to prepare them for space travel and working in an anti-gravity environment. The education aspect teaches users about the planets, and star constellations, and then offers quizzes on what has been taught.

Platform: Android and iOS

Cost: A free download.

Stockists: Visit the store linked to your device.

 

Memrise

Memrise takes a new approach to help people learn new languages. Instead of providing a user with random phrases and words to memorise, the app connects you with a person already fluent in the language you want to learn. In turn, the person you are speaking to wants to learn the language in which you are fluent. Once your profile is filled out and languages selected, it connects you with people around the world who are interested in your language, and then allows you to chat with them in real-time. Memrise also lets one learn new languages through games, chatbots and grammarbots that help with spelling, tenses and pronunciations.

Platform: Android and iOS

Cost: A free download.

Stockists: Visit the store linked to your device.

 

Hitman Sniper

Hitman Sniper is loosely based on the Agent 47 movie released a few years ago. The game offers players the ability to hone their shooting skills through a range of training courses and, once they think they are ready, they can start taking out the bad guys. Things start off easy enough, but they get more and more difficult as one progresses through the 150 missions on offer. One will also have to upgrade various gun components, like scopes, magazine capacities and silencers, to make the missions a little easier. Hitman Sniper lets users buy 16 to tackle each of the missions – either with real money or via the points accumulated by completing missions. Money and points can also be used to upgrade firearms.

Platform: Android and iOS

Cost: R7 – with a range of in-app purchases.

Stockists: Visit the store linked to your device.

 

Snake Mask

The iconic Snake game that was preinstalled on most older Nokia phones has had a complete make-over. It now uses Facebook’s AR technology, meaning that you have to navigate the snake around obstacles in your home or office, all the while collecting coins and stars that change the snake’s speed and length. Unfortunately, Snake Mask is only available on Nokia’s new range of smartphones. However, it should not take long before it slithers onto other devices.

 

Platform: New Nokia smartphones running Android.

Cost: Free to use through the Facebook app installed on the device.

Stockists: Available through the Facebook app.

 

WhatsApp Web

Although this is by no means a new app, it is an extremely useful one, and one that not many people know about. Tapping out WhatsApps on your phone is easy enough, but thanks to WhatsApp Web it can be even easier. Open the WhatApp Web page under WhatsApp and you will see a QR code. Scan this code through WhatsApp on your mobile and you will be shown a replica of what you would normally see on your phone. You can then type and reply to messages using your computer instead of having to stop everything and unlock your phone every time a message comes through. WhatsApp Web is great if you share your computer with other people as it automatically disconnects when the browser is closed. However WhatsApp also offers an app that when installed will stay connected to your phone unless you manually remove it.

 

Platform: Any up-to-date Internet browser

Cost: Free to use and install

Stockists: Visit www.WhatsApp.com

 

Carrot Weather

There are thousands of weather apps on the Internet these days and all of them do the same thing – inform you of the weather in your area. However, Carrot Weather has taken what is just another app and turned it into something fun. By fun, I mean sarcastic, rude and completely politically incorrect. A user starts off by selecting religious and political views. It then asks about personality, ranging from friendly to homicidal to overkill – which includes profanity. So, for instance, instead of waking up to to the standard partly cloudy forecast, Carrot Weather will display something like: “It’s only partly sunny, the sun is a total effing failure.” It also has a range of insults that it throws at you whenever you open the app – some of them downright insulting, so it is definitely not for those who are easily offended. The app’s user interface is very simple, displaying a week’s daily forecast and hourly forecasts for the day selected.

Platform: Android and iOS

Cost: Free to download but with adverts. The premium, advert free version costs R12 per month.

Stockists: Visit the store linked to your device.

* Sean Bacher is editor of Gadget.co.za. Follow him on Twitter on @SeanBacher

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SA Start-up reinvents PABX

For any South African business, the idea of setting up or changing a telephonic switchboard system is the stuff of nightmares. Dealing with expensive hardware and hearing things like QSIG and VOIP is not what you’d call exciting.But now there is an app.

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Enter BuzzBox (www.buzzboxcloud.co.za), a web-based telephone switchboard that is aimed at small and medium sized businesses wanting to take the hassle and cost out of the company switchboard. Whether you are a small one-man operation or a larger organisation with staff working remotely, BuzzBox is the best switchboard solution.

What sets BuzzBox apart from anything else on the market is its easy-to-use dashboard. It puts you in control of everything from picking your phone number to setting up voice prompts and managing your business-hours schedule.

BuzzBox was developed when the startup behind it, Jini-Guru, needed such a service for its own use across multiple continents. “When we started Jini-Guru we could not find a seamless online process that would allow us to set up a full web-based switchboard, so we decided to build one for ourselves,” says Mike Smits, Director at Jini-Guru.

He says a lot of startups today are tech savvy and know how to use apps and the services that go with it. “It’s the uberisation of services and its driving demand for instant service activation.”

BuzzBox works as an app on both iOS and Android but users wanting a desk phone option can choose from a variety of devices on offer or use their existing VOIP phones.

Setting up a BuzzBox account takes 5 minutes. During registration your FICA documents are uploaded [ID and proof or residence] and you get to pick your phone number before the account is created. Companies that want to keep an existing number can do so too.

The real magic happens when you log on to the BuzzBox Dashboard. The main screen displays a summary of statistics for your account while the left-hand menu provides you quick access to various configuration settings and reports.

Setting up new extensions or external numbers is done with a few clicks and you can even set up various departments which is a great way to route a call to various people in a department, like sales or support.

The intuitive user interface also makes it easy to set up hold-music and voice prompts. You can add voice prompts by recording them straight to your phone, just make sure you use a clear voice with quiet surroundings for the best customer experience.

One of the main features of BuzzBox is its call recording feature that allows an organisation to record calls for legislative purposes, such as a lawyer, or for customer service purposes such as support. Recordings are stored securely online, and you have the ability to download recordings for playback. Companies can opt-in for this service and it’s free to use. Recordings are stored online and are fully encrypted so only you can listen to, or download them. Storage costs R1 for every 1000 minutes of stored recordings.

Other features include call forwarding and scheduling. The latter allows you to set office hours for your organisation which will divert calls to an after-hours messaging service. You also have the option to enable routing to an employee who is on call after hours.

BuzzBox also has a reseller program for companies wanting to offer this as a switchboard solution to their existing customers.

The costs for this service is R89 p/m for the first phone number which includes your first extension for free. Thereafter you’ll pay R89p/m per extension. Calls between extensions are free but you pay per second for all outgoing phone calls. More info on pricing can be found here: https://buzzboxcloud.co.za/pricing/

BuzzBox is offering a Launch promotion where they are offering the first line and extension free for 12 months. Only pay for calls. Use promo code “feoifyaa” during sign-up to apply your discount.

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